Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue, 2019-04-25

* 4.1 machine-types (Cornelia Huck)
* Support MAP_SYNC on pmem memory backends (Zhang Yi)
* -cpu parsing fixes and cleanups (Eduardo Habkost)
* machine initialization cleanups (Wei Yang, Markus Armbruster)

# gpg: Signature made Thu 25 Apr 2019 18:54:57 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  util/mmap-alloc: support MAP_SYNC in qemu_ram_mmap()
  linux-headers: add linux/mman.h.
  scripts/update-linux-headers: add linux/mman.h
  util/mmap-alloc: Add a 'is_pmem' parameter to qemu_ram_mmap
  cpu: Fix crash with empty -cpu option
  cpu: Rename parse_cpu_model() to parse_cpu_option()
  vl: Simplify machine_parse()
  vl: Clean up after previous commit
  vl.c: allocate TYPE_MACHINE list once during bootup
  vl.c: make find_default_machine() local
  hw: add compat machines for 4.1

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

4 files changed, 29 insertions, 5 deletions

diff --git a/include/hw/boards.h b/include/hw/boards.h
index e231860666..6f7916f88f 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -57,7 +57,6 @@ void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
 #define MACHINE_CLASS(klass) \
     OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE)
 
-MachineClass *find_default_machine(void);
 extern MachineState *current_machine;
 
 void machine_run_board_init(MachineState *machine);
@@ -293,6 +292,9 @@ struct MachineState {
     } \
     type_init(machine_initfn##_register_types)
 
+extern GlobalProperty hw_compat_4_0[];
+extern const size_t hw_compat_4_0_len;
+
 extern GlobalProperty hw_compat_3_1[];
 extern const size_t hw_compat_3_1_len;
 
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index ca65ef18af..43df7230a2 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -293,6 +293,9 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t);
 int e820_get_num_entries(void);
 bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
 
+extern GlobalProperty pc_compat_4_0[];
+extern const size_t pc_compat_4_0_len;
+
 extern GlobalProperty pc_compat_3_1[];
 extern const size_t pc_compat_3_1_len;
 
diff --git a/include/qemu/mmap-alloc.h b/include/qemu/mmap-alloc.h
index ef04f0ed5b..eec98d82c1 100644
--- a/include/qemu/mmap-alloc.h
+++ b/include/qemu/mmap-alloc.h
@@ -7,7 +7,26 @@ size_t qemu_fd_getpagesize(int fd);
 
 size_t qemu_mempath_getpagesize(const char *mem_path);
 
-void *qemu_ram_mmap(int fd, size_t size, size_t align, bool shared);
+/**
+ * qemu_ram_mmap: mmap the specified file or device.
+ *
+ * Parameters:
+ *  @fd: the file or the device to mmap
+ *  @size: the number of bytes to be mmaped
+ *  @align: if not zero, specify the alignment of the starting mapping address;
+ *          otherwise, the alignment in use will be determined by QEMU.
+ *  @shared: map has RAM_SHARED flag.
+ *  @is_pmem: map has RAM_PMEM flag.
+ *
+ * Return:
+ *  On success, return a pointer to the mapped area.
+ *  On failure, return MAP_FAILED.
+ */
+void *qemu_ram_mmap(int fd,
+                    size_t size,
+                    size_t align,
+                    bool shared,
+                    bool is_pmem);
 
 void qemu_ram_munmap(int fd, void *ptr, size_t size);
 
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index e9bec3a5bc..08abcbd3fe 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -681,15 +681,15 @@ ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
 CPUState *cpu_create(const char *typename);
 
 /**
- * parse_cpu_model:
- * @cpu_model: The model string including optional parameters.
+ * parse_cpu_option:
+ * @cpu_option: The -cpu option including optional parameters.
  *
  * processes optional parameters and registers them as global properties
  *
  * Returns: type of CPU to create or prints error and terminates process
  *          if an error occurred.
  */
-const char *parse_cpu_model(const char *cpu_model);
+const char *parse_cpu_option(const char *cpu_option);
 
 /**
  * cpu_has_work: